package risoe.syslab.fhnew.config;

/*
 * Copyright (c) 2012-2014, Technical University of Denmark (DTU)
 * All rights reserved.
 * 
 * The Flexhouse 2.0 platform ("this software") is licensed under the
 * BSD 3-clause license.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   - Neither the name of DTU nor the names of its contributors may be used to
 *     endorse or promote products derived from this software without specific
 *     prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE TECHNICAL UNIVERSITY OF DENMARK BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import java.io.Serializable;
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import risoe.syslab.fhnew.hw.DaliInterface;
import risoe.syslab.fhnew.hw.HardwareInterface;

@SuppressWarnings("serial")
public class DaliInterfaceConfig extends HWInterfaceConfig implements Serializable{

	public static final String TYPESTRING = "DaliBus";
	private static final String HOST_ATTR = "ip";
	private static final String INREG_ATTR = "inReg";
	private static final String OUTREG_ATTR = "outReg";

	private InetAddress hostip;
	private int inReg;
	private int outReg;

	public DaliInterfaceConfig() {
		super();
	}

	protected void parseSubInterface(NamedNodeMap attrs) {
		Node _ip=attrs.getNamedItem(HOST_ATTR);
		if (_ip!=null) {
			try {
				hostip=InetAddress.getByName(_ip.getNodeValue());
			}
			catch (UnknownHostException e) {
				throw new IllegalArgumentException(HWINTERFACE_TAG+": '"+_ip+"' is not a valid IP address.");
			}
		}
		else {
			throw new IllegalArgumentException(HWINTERFACE_TAG+": Missing '"+HOST_ATTR+"' attribute.");
		}

		Node _inReg=attrs.getNamedItem(INREG_ATTR);
		if (_inReg!=null) {
			inReg=Integer.parseInt(_inReg.getNodeValue());
		}
		else {
			throw new IllegalArgumentException(HWINTERFACE_TAG+": Missing '"+INREG_ATTR+"' attribute.");
		}
		
		Node _outReg=attrs.getNamedItem(OUTREG_ATTR);
		if (_outReg!=null) {
			outReg=Integer.parseInt(_outReg.getNodeValue());
		}
		else {
			throw new IllegalArgumentException(HWINTERFACE_TAG+": Missing '"+OUTREG_ATTR+"' attribute.");
		}
	}

	public String getType() {
		return TYPESTRING;
	}
	
	@Override
	public String getAddress() {
		return hostip.toString();
	}

	public InetAddress getHostIPAddress() {
		return hostip;
	}
	
	public int getInReg(){
		return inReg;
	}
	
	public int getOutReg(){
		return outReg;
	}

	protected void toStringImpl(StringBuilder b) {
		b.append(", ip address=\""+hostip.toString()+"\"");
	}

	public HardwareInterface getInterfaceInstance() {
		return new DaliInterface(this);
	}

}
